SACRED TO THE MEMORY OF ROBERT LONG, WILLIS ELLERY, NATHAN COLEMAN, WALTER CANNY, SETH MACY, AND SAMUEL GLEIG, Forming one of the boats' crews OF THE SHIP ELIZA Who were towed out of sight by a Whale, On the Off-shore Ground in the PACIFIC, December 31st, 1839.
Similar effects are produced in narrow waters by the action of tidal currents, and the influence of a steady wind blowing onor off-shore has a powerful effect in mixing the water.
The western coast has fewer and shorter off-shore reefs; much of it is of minutely irregular outline, which seems to be determined less by the work of the sea than by the forward growth of mangrove swamps in the shallow salt water.
It has a relatively rapid descent toward the inner lowland, and a very gradual descent to the coast prairies, which become very low, flat and marshy before dipping under the Gulf waters, where they are generally fringed by off-shore reefs.
In the upper air a dry off-shore wind from the Rocky Mountain plateau prevails throughout the summer; and in winter an onshore rain wind.
Nearly all the rest of the coast is fringed by off-shore reefs, built up by waves from the very shallow sea bottom; in virtue of weak tides, the reefs continue in long unbroken stretches between the few inlets.
In the monsoon regions the half-yearly change from on-shore to off-shore winds produces noticeable differences in XIX.